1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
From 652d6bbdfda7a974503507ad1ec0d36d3cd83630 Mon Sep 17 00:00:00 2001
From: Chunming Zhou <David1.Zhou@amd.com>
Date: Thu, 3 Mar 2016 12:05:44 +0800
Subject: [PATCH 1458/1565] drm/amdgpu: add hdp invalidation for cik sdma
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Change-Id: I1cb035fa9ca977be28ac6d949e9bedec339b9c50
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/amd/amdgpu/cik_sdma.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
index 1d71918..57072a8 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -261,6 +261,13 @@ static void cik_sdma_ring_emit_hdp_flush(struct amdgpu_ring *ring)
amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
}
+static void cik_sdma_ring_emit_hdp_invalidate(struct amdgpu_ring *ring)
+{
+ amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+ amdgpu_ring_write(ring, mmHDP_DEBUG0);
+ amdgpu_ring_write(ring, 1);
+}
+
/**
* cik_sdma_ring_emit_fence - emit a fence on the DMA ring
*
@@ -1286,6 +1293,7 @@ static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
.emit_fence = cik_sdma_ring_emit_fence,
.emit_vm_flush = cik_sdma_ring_emit_vm_flush,
.emit_hdp_flush = cik_sdma_ring_emit_hdp_flush,
+ .emit_hdp_invalidate = cik_sdma_ring_emit_hdp_invalidate,
.test_ring = cik_sdma_ring_test_ring,
.test_ib = cik_sdma_ring_test_ib,
.insert_nop = cik_sdma_ring_insert_nop,
--
1.9.1
|
